SMC30J26A Circuit Protection

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Transient voltage suppressor diode, or TVS, is a device that is used to protect electrical circuits from abnormal voltage surges, high-voltage spikes, and other transient voltage pulses that can damage sensitive components. The SMC30J26A is one type of TVS diode that is commonly used for a variety of applications. This article will explain the application field and working principle of SMC30J26A.

The SMC30J26A is a glass-passivated junction transient voltage suppressor device designed to protect sensitive components from voltage levels up to 34V. This device has a working peak reverse voltage of 26V, an off-state reverse voltage of 30V, and an on-state current rating of 400mA. This device is available in a variety of surface-mounted package configurations, making it ideal for high-density, space-constrained applications.

The primary application fields of the SMC30J26A include power supplies, telecommunications equipment, storage, low-voltage circuits, and consumer electronics circuits. These devices are designed to provide effective protection from over-voltages or transients that could potentially damage sensitive components in these types of circuits.

The working principle of the SMC30J26A is based on the basic concept of a reverse-biased diode. When a voltage below its reverse-bias voltage is applied to the diode, the current flow is blocked, and the diode does not conduct. Conversely, when a voltage higher than its reverse-bias voltage is applied to the diode, current will flow, and the diode will conduct. This type of diode can effectively protect sensitive components from voltage spikes and over-voltage conditions.

The SMC30J26A is designed to have a minimum breakdown voltage of 26V. When a voltage higher than its reverse-bias voltage is applied to the diode, the current flowing through the diode will increase rapidly to a point where it can quickly absorb the excess energy and dissipate it as heat. This effect protects the circuit components from damage.

The SMC30J26A also has an internal series element that limits the peak reverse voltage of the diode. This element helps prevent energy from building up to levels that could exceed the breakdown voltage of the diode. This helps ensure that the diode is always able to effectively divert and absorb any excess energy generated by transient voltage pulses.

In addition to its voltage and current protection capabilities, the SMC30J26A also has surge current ratings that are higher than many other types of TVS diodes. This is thanks to its glass-passivated junction design, which helps to ensure that the device has a higher level of surge current protection than traditional TVS devices.

The SMC30J26A is an ideal choice for many applications that require high-density, space-constrained protection from transient voltage pulses. Its range of working voltages, current ratings, and surge protection capabilities make it a reliable solution for a variety of different circuit designs. The device also offers good reliability and a long lifetime thanks to its robust construction and its highly durable glass-passivated junction design.

The specific data is subject to PDF, and the above content is for reference